Cleaner for excavating-dippers.



E. A. ANDERSON.- -CLEANBR FOR EXGAVATING DIPPBRS. APPLICATION FILED JUNE 13. 1913.

1,128,215. vPatented Feb. 9, 1915.

HE NDRRIS PETERS C0.. PHOTO-LITHO.. wAsHlN TON, D4 C.

, UNITED etetfee PATENT Eil/ 11n4 a. Aivnnnsoiv, or svvna curvy, IQWA.

CLEANER eee eXeeveeINe-gttteee Dipper-s, of Whichthe following is a speciiication.

The object of my invention is to provide a means for scraping the insideof an excavating clipper' to prevent' the contents thereof from sticking or delaying the discharge of the dipper load and the operation of the machine.

A further object is to provide a cleaning device which will be positive and reliable in its action and of simple, economical construction.

The invention consists generally in various constructions and 'combina-tions, all as hereinafter described and particularlyv pointed out in the claims. A a

In the accompanying drawings forming part of this specification, Figure l is a side view of a portion of a boom Yvith a dipper suspended thereon and embodying my linvention, Fig. 2 is a sectional view illustrating the preferred manner of supporting'the dipper on the boom and the arrangement of the cleaning device in the'dipper, Fig. 3 is a transverse sectional view of the dipper.

In the'draiving, 2 represents a boom of ordinary construction. I have not thought it necessary to illustrate the mast in connection with this bottom, as it is of ordinary construction and forms no part of my present invention.

3 is a bracket, rigidly secured to the outer portion of the boom and 4 is an excavating dipper that is mounted on a casing 5 pivotally connected to the lower end of the bracket 8. A sheave 6 is mounted in the end of the boom and a cable 7 passes over this sheave and is connected at 8 to the bucket and has the function of swinging the bucket from its loading to its dumping position.

9 is a bail, pivoted on the bucket, and 10 is a cable connected thereto which may be designated as the loading cable, being adapted to drag the bucket through the material in the excavation.

11 is a shaft j ournaled in bearings in the outer portion of the boom and having a pulley l2 mounted therein to receive a driving cable 13 by means of which the shaft 11 is Specification of Letters Patent.

Patients@ Febe tele application filed lune 13, 181,3. lSerial N o. 773,441.

l'eveb'eft This Shaft depende. below. the boom and has "a fork le at 'its lovver end. Steel' le ie mounted to rotate in e heb! 16 on the oeeeg '5 eed hee etongue 17( termed. thereon that ie adapted to pese between" the terme of the fork 1t' when the bucket et dipioer ie evthg to ite demping poeton-`De1 ing the loading operation, the tongue passes out from between theerme ot the fork, ee edieeted by dotted linee'ih Eig l, and the beeket may hen be drawn through .the me? terel .until it ,e'lled The Steel .1 projects through the head of the bucket and supports a scraper 18', U- Sbeped, Stbelt'antelly; .in tout, and tthg egfeget .the heed and Welle ot the boeket and heveg edges preferably beveled, es 'indicatedV at l 9 to scrape the inner surface of the boeket and prevent the voleyor other tegeeioue materiel that may be gathered 'up flOm Sticking' to the Welle' ofthe bucket and intertereg' with the discharge' of ,the load. It may not be necessary in all instances to operate this scraper Vand provision may be mede for opeletng it' only in oase that the leed .etokeh the buoket In hendlingeend the operation of the @leerling devoemght.

' tothe Welle of the beoket and Provision may be made for operating the cable '13 With each discharge and thereby insuring the thorough cleaning out of the bucket each time that it is inverted to aI dumping position. It will be noted that this scraper operates on the head or bottom of the bucket as Well as on the Walls thereof, and a thorough cleaning and scraping of the Walls is thereby insured.

I claim as my invention 1. The combination, With a boom, and an excavating bucket pivoted thereon, of a scraper mounted to revolve on the bottom of said bucket on the inside thereof and having means to sweep the inner surface of said bottom and the Walls of said bucket, cables having running connections With said boom and with said bucket, and means mounted on said boom and operatively connected With said scraper for operating it to clean said bucket.

2. The combination, With a boom, of an excavating bucket pivoted thereon, a dumping cable connected to said bucket and having a running connection With' said boom, a loading cable connected to said bucket, a

scraper device having arms to sweep the inner surface of the walls of said bucket, and means mounted on said boom for operating said scraper device.

3. The combination, with an excavating bucket having an open and a closed end, of a` scraper device centrally mounted on the closed end of said bucket and having arms for scraping the surface of said closed end and the inner surface of the walls of said bucket, a boom whereon said bucket is pivoted, cables having running connections l with said boom and with said bucket for loading and dumping said bucket, and operating means for said device mounted on said boom and connected with said device.

4. The combination, with a boom, of an excavating bucket pivoted thereon, a cleaning device mounted in said bucket and means mounted on said boom and becoming operative to revolve said cleaning device when said bucket is swung to its dumping position and becoming disengaged from said cleaning device and inoperative when said bucket is swung to its loading position.

5. The combination, with a boom, of an excavating bucket pivoted thereon, a shaft mounted in said boom, means for revolving said shaft, loading and dumping cables connected to said bucket, a scraper device mounted in said bucket, and means for temporarily coupling said scraper device and said shaft together when said bucket is swung to its dumping position, said scraping device becoming automatically uncoupled from said shaft when said bucket is swung to its loading position.

6. The combination, with a boom, of an excavating bucket pivoted thereon, loading and dumping cables for said bucket, a revolving shaft journaled in said boom and having a forked end, a stud mounted in the head of said bucket and having a tongue to enter the fork of said shaft when said bucket is swung to its dumping position, and a scraper mounted on said stud and adapted to clean the walls of said bucket.

7. The combination, with a boom and an excavating bucket, of a cleaning device, means becoming operative to actuate said cleaning device when said bucket is moved to its dumping position and becoming disengaged from said cleaning device and temporarily inoperative when said bucket is moved to its loading position.

8. The combination, with an excavating bucket, of a scraper mounted to revolve therein and having means to clean the walls of said bucket, and means becoming temporarily inoperative when said bucket is moved to its loading position for revolving said scraper within said bucket.

9. The combination, with a boom and an excavating bucket, of a revolving shaft, loading and dumping cables, a scraper de vice mounted to operate in said bucket, means for temporarily coupling said scraper device and said shaft together when said bucket is swung to its dumping position, said scraping device becoming automatically uncoupled from said shaft when said bucket is swung to its loading position.

In witness whereof, I have hereunto set my hand this 7th day of June 1913.

EMIL A. ANDERSON.

Witnesses:

C. PEARsoN, WALTER H. PETERsoN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

